Critical Firefox vulnerability fixed in 59.0.1

On Friday, Mozilla issued a security advisory for Firefox, the default web browser in Fedora. This advisory centered around two CVEs — both of which allowed an out of bounds memory write while processing Vorbis audio data, leading to arbitrary code execution. CVE-2018-5146 is against the bundled library libvorbis that Firefox ships to process Vorbis audio on most architectures. CVE-2018-5147 is against libtremor, which firefox bundles for the same task on ARM architectures.